Designed for use under long and sustained fire, Break Free® Performance Synthetic Gun Oil is ideal for law enforcement, target shooters, and anyone using rapid-fire automatic handguns and rifles. Originally developed for fully automatic cannons used by the U.S. military, this proprietary formula ensures consistent cyclic rates are maintained and gun actions operate smoothly, even under adverse conditions and extended firing periods. Break Free Performance Synthetic Gun Oil doesn't dry out, harden, solidify or attract metal fines and other contaminants.